WARNING: This page is about a different car, the 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Installation Position Of Needle Bearing
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Dimension -a- from bottom edge of rule to top edge of needle bearing = 39.5 mm
NOTE:
Measure from top edge of rule and subtract height of rule from measured value.